S
M
T
W
T
F
S
26
87°
66°
27
90°
67°
28
90°
69°
29
89°
68°
30
76°
65°
1
65°
54°
2
74°
51°
3
79°
46°
4
81°
48°
5
86°
54°
6
86°
73°
7
79°
64°
8
68°
64°
9
69°
66°
10
86°
64°
11
83°
65°
12
85°
67°
13
86°
64°
14
88°
59°
15
89°
58°
16
87°
65°
17
84°
72°
18
84°
72°
19
89°
70°
20
87°
68°
21
89°
70°
22
82°
69°
23
82°
71°
24
84°
70°
25
85°
69°
26
85°
72°
27
86°
70°
28
85°
69°
29
84°
70°
30
88°
66°
31
89°
70°
1
89°
70°
2
88°
69°
3
85°
69°
4
85°
68°
5
86°
70°
6
85°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sun
Sun's May 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 66° and 72°. The average high for May is 86° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Sun. See also: June | July | August.
